...大小不同形成不同激波组织,压比不高时主要显示出斜激波(Oblique shock), 当压比增大时渐渐出现强度较高的正激波(Normal shock),流场中存在正激波时对切割 工艺的影响更大。这时提高供气压力不但不能提高切割速度,反而会对切割质量产生许 多不良影响。
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It is showed that a shock wave speed distribution in red light period at a plane intersection satisfies a normal assumption, as well as Poisson assumption.
依据实际测量数据,论证了平面交叉口绿灯转红灯时车流堵塞波的推进速度满足正态分布假设,其拟合优度高于泊松分布假设。
The results show that: (1) the propagation of the shock wave is asymmetrical relative to the normal direction of the flare.
结果表明:(1)激波的传播相对耀斑法线方向是非对称传播。
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